EP0616517B1 - Selbstklebendes laminat für fuss- und fingernägel - Google Patents

Selbstklebendes laminat für fuss- und fingernägel Download PDF

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Publication number
EP0616517B1
EP0616517B1 EP92924633A EP92924633A EP0616517B1 EP 0616517 B1 EP0616517 B1 EP 0616517B1 EP 92924633 A EP92924633 A EP 92924633A EP 92924633 A EP92924633 A EP 92924633A EP 0616517 B1 EP0616517 B1 EP 0616517B1
Authority
EP
European Patent Office
Prior art keywords
self
layer
adhesive
laminate according
adhesive laminate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92924633A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0616517A1 (de
Inventor
Hans-Rainer Hoffmann
Reinhard Von Kleinsorgen
Hans Günther SIMON
Dorothea Steinborn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LTS Lohmann Therapie Systeme AG
Original Assignee
LTS Lohmann Therapie Systeme AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4140888A external-priority patent/DE4140888A1/de
Application filed by LTS Lohmann Therapie Systeme AG filed Critical LTS Lohmann Therapie Systeme AG
Publication of EP0616517A1 publication Critical patent/EP0616517A1/de
Application granted granted Critical
Publication of EP0616517B1 publication Critical patent/EP0616517B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D29/00—Manicuring or pedicuring implements
    • A45D29/001—Self adhesive nail coating blanks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches

Definitions

  • nail polish It is known to treat nails by means of solvent-based polymer lacquers in order to achieve a cosmetic effect (nail polish). It is also known to add an antifungal substance or an agent that nourishes the nail to such a lacquer. It is also generally known how much effort it takes to apply such a nail polish with the desired appearance. (Time, drying of the paint, practice, external appearance).
  • the high tensile strength of the PVC film or similar polymer films such as polyethylene, polypropylene or polyester make it difficult to form the film onto the nail by simply shearing it off and involve the risk of injury to the nail bed.
  • the formability on the nail as well as the stability with regard to the applicability are directly related to the brittleness of the laminate, whereby it had to be found that the ideal properties of a nail polish laminate (laminate based on nitrocellulose - commercially available nail polish) poses stability problems, such that that the laminate becomes brittle during storage (dries out) and can no longer be applied.
  • a nail decor layer or film which, in order to circumvent the disadvantages associated with the use of nail varnishes, one or more layers of lacquer, foil, fleece, fabric or adhesive or a combination of these this and which by means of a suitable adhesion promoter by applying pressure and / or heat and / or radiation and / or a chemical reaction either from a carrier material or directly onto the Nail to be transferred.
  • This nail decor layer thus represents a self-adhesive laminate which can be molded onto the toenails and fingernails and which has a film-forming polymer layer, a pressure-sensitive adhesive layer arranged thereon, a backing film which covers the pressure-sensitive adhesive layer, and also a removable protective layer which covers the polymer layer at least over the entire surface.
  • the post-published WO 92/02204 describes a self-adhesive, plasticizer-containing laminate which can be molded onto toenails and / or fingernails.
  • This laminate consists of a film-forming polymer layer with 30% of a plasticizer, a pressure-sensitive adhesive layer thereon, a removable releasable backing film covering the pressure-sensitive adhesive layer, and a detachable protective layer covering the film-forming polymer layer at least over the entire surface, the protective layer against the other components of the laminate and the Materials used in the production of the laminate are resistant and the adhesion of the cover layer (protective layer) to the polymer layer is less than the adhesion between the pressure-sensitive adhesive layer and the protective layer (carrier film) by means of an abhesive finish on the coated side.
  • the adhesive coating of the cover layer (protective layer) has been achieved by coating with a silicone, fine groove structures being able to considerably disrupt the gloss effect due to the application of a doctor blade in the polymer layer.
  • the object of the present invention was therefore to develop a self-adhesive laminate which is comparable to the commercially available nail polishes based on solvents, properties desired by the consumer such as gloss, hardness, flexibility and durability on the nail without foreign body feeling, and on the Nail can be formed without any difficulty, that, together with the aforementioned properties, has sufficient stability against drying out and the resulting high degree of brittleness, and in which the covering layer is abhesively finished while avoiding siliconization.
  • the protective layer being resistant to the other constituents of the laminate and the materials used in the production of the laminate, and the adhesion of the cover layer (protective layer) to the polymer layer by means of an abhesive finish while avoiding siliconization on the coated side is less than the adhesion between the pressure-sensitive adhesive layer and the protective layer (carrier film).
  • the combination of these properties which are important for the application is achieved in that the abhesive finish is achieved by a coating which, as an essential component, is a complex salt of a fatty acid of 12 to 22 carbon atoms, which is saturated or up to 3 olefinic Contains bonds, and contains at least a divalent metal.
  • This material has the advantage that it gives an absolutely smooth surface, so that the polymer layer has a high gloss.
  • An embodiment of the invention advantageously provides that the at least divalent metal is a transition metal. It can advantageously be the heavy metal chromium.
  • the invention thus relates to a self-adhesive laminate which can be molded onto the foot and fingernails, comprising the components a) to f) according to the preamble of claim 1, with an adhesion of the cover layer (protective layer) to the polymer layer by means of an inventive coating with an adhesive coating Avoiding siliconization, according to the characterizing features of claim 1.
  • the coating of the lacquer (ie the polymer layer) on the cover layer to be removed prior to application enables the surface of the polymer layer to be structured on the one hand and on the other hand ensures the stability and usability of the laminate until application.
  • the surface structuring of the polymer layer corresponds to a negative impression.
  • Suitable plastic films are, for example, those made of polyesters, such as polyethylene terephthalate, polybutylene terephthalate or polyethylene sebacate, made of polyethylene, polypropylene or polyamides such as polyhexamethylene adipate, polycaprolactam or poly (w-undecanoic acid amide).
  • polyesters such as polyethylene terephthalate, polybutylene terephthalate or polyethylene sebacate
  • polyethylene, polypropylene or polyamides such as polyhexamethylene adipate, polycaprolactam or poly (w-undecanoic acid amide).
  • a surface treatment with suitable substances in the context of the present invention with salts of long-chain fatty acids of, for example, 12 to 22 carbon atoms, which are saturated or can contain up to three olefinic bonds, and at least divalent metals, in particular those transition heavy metals, especially chromium.
  • a textile fabric can be a nonwoven fabric or fabric that is suitably equipped with an adhesive.
  • the protective layer d) is preferably provided with an adhesive on the side coated with the polymer layer a), i.e. the adhesion between it and the laminate is less than the adhesion between the adhesive layer and the carrier film.
  • the carrier film is advantageously provided with a removal aid, e.g. by making semicircular incisions in it. This makes handling easier.
  • the adhesive layer (b) of the laminate can consist of a known adhesive and can also have one or more layers.
  • the weight per unit area of the adhesive layer is generally in the range from 20 to 100 g / m 2 , preferably 25 to 75 g / m 2 .
  • the polymer layer of the laminate which can be single or also multi-layer, generally has a layer thickness of 25 to 200, preferably 60 to 150 ⁇ m, with the individual layers being able to have a different composition in the case of a multi-layer construction.
  • the concentration of the plasticizers in the polymer layer is 15 to 25, preferably 17 to 22% by weight, based on the polymers.
  • Preferred plasticizers are those whose migration is extremely low, such as conventional citric acid esters or dioctyl adipate. If necessary, camphor can be used as an additional plasticizer, but this is not preferred. In this case, the preferred amount of plasticizer is 5 to 12.5, in particular 7 to 10,% by weight. Since the polymer layer a) is often made from conventional nail varnishes, it often also contains other plasticizing compounds such as phthalates, e.g. Dibutyl phthalate.
  • the polymer layer advantageously consists at least in part of nitrocellulose alone or acrylates alone or mixtures of these two components known per se for nail polishes.
  • polymers of acrylic or methacrylic acid esters are used as acrylates, especially of alcohols having 1 to 4, preferably 1 to 2, carbon atoms and / or dimethylaminoethyl methacrylate.
  • the polymer layer usually also contains at least one colorant customary in the cosmetics industry, that is to say dyes and / or pigments; however, this is not necessary.
  • the self-adhesive laminates according to the invention can namely also be transparent if this is desired.
  • Additives such as odor-active components and / or active substances, preferably antifungal substances such as clotrimazole, miconazole, ketoconazole, econazole, naftidine, ciclopiroxolamine, fenticlor, sulbentin, tolnaftate and haloprogin, can be added to the polymer layer a) and / or the adhesive layer b).
  • the adhesive layer advantageously consists of several layers.
  • R 1 denotes a hydrocarbon group which contains 6 to 9 carbon atoms but is free from olefinic and acetylenic bonds; one of the groups R 2 and R 4 is hydrogen and the other is hydrogen, methyl or ethyl, and R 3 is alkyl having up to 2 carbon atoms; these active substances can be present in free form or in the form of a salt.
  • R 1 can be, for example, a cyclohexyl or octyl group, for example of the formula CH 2 - CH (CH 3 ) -CH 2- C (CH 3 ) 3 .
  • the incorporation of the compounds mentioned into the laminates according to the invention has the advantages over the lacquers according to EP 226 954 that the bioavailability of the active substance from the laminate is ensured to the extent desired by the standardized layer thickness and that the duration of exposure depends on the thickness of the laminate Can be set at will.
  • the adhesive layer of the laminate according to the invention is permeable to the active substances mentioned, and therefore does not constitute a barrier for them if these active substances are in the polymer layer. Rather, the action of the active ingredient on the nail can be accelerated if the active ingredient is also incorporated into the adhesive layer.
  • the adhesive layer can also contain a substance that promotes the penetration of the active ingredient into the nail.
  • a substance that promotes the penetration of the active ingredient into the nail is known from the field of transdermal therapeutic systems.
  • Substances that promote the transport of active substances into the skin or through the skin are, for example, dimethyl sulfoxide (DMSO) and dimethylformamide (DMF) as well as a large number of different emulsifiers, fatty acids and their esters.
  • DMSO dimethyl sulfoxide
  • DMF dimethylformamide
  • the invention has the following advantages: No organic solvent is released into the environment.
  • the laminates according to the invention which are suitable as artificial toenails or fingernails, meet all the demands placed on them by the consumer with regard to overall appearance, hardness, flexibility and durability. Their properties are such that injury to the nail bed is avoided during application and use.
  • the polymer layer can also be structured for decorative purposes by using a suitable structured cover layer.
  • the invention also relates to the use of the laminates according to the invention for application to toenails or fingernails as artificial toenails or fingernails.
  • nitrocellulose as hard polymer
  • polyacrylic ester R Acronal 2F from BASF AG, Ludwigshafen, as a soft polymer
  • toluenesulfonamide resin R Santolite MHP from Monsanto.
  • plasticizer citric acid ester, R Citroflex A from Pfizer, USA
  • This mass is applied to a carrier film (polyester film) with an adhesive on one side and dried, (adhesive layer thickness 80 ⁇ m).
  • the laminate produced in this way proved to be stable when stored for 6 months at 50 ° C. and fulfilled the required application and wearing properties.
  • Products without a protective layer d) became brittle after storage for 2 days at 50 ° C. and could no longer be applied.
  • the protective layer d) coherently covers several areas, it can be detached from the carrier film c) in order to remove an area of the self-adhesive polymer layer.
  • the polymer layer equipped with pressure-sensitive adhesive has the same properties as a lacquer layer which has been applied by means of a solvent-containing nail varnish composition, but in contrast to the gluing of so-called artificial fingernails with the product according to the invention, there is no foreign body sensation.
  • the polymer layer equipped with the pressure sensitive adhesive can be removed from a nail by, for example, sticking a self-adhesive film overhanging the polymer layer and, after pressing on the film at the edges of the polymer layer, pulling it off the nail as a whole, in a manner similar to price labels on packaging by means of a Can remove self-adhesive tape. No residue remains on the nail, so cleaning the nail with an organic solvent is unnecessary.
  • This is a significant advantage when using the laminates according to the invention.
  • This new application system also prevents the so-called “staining", ie the penetration of dye into the nail, which often occurs in nail polishes, which represents a further significant advantage.
  • Example 1 is specified in that the abhesive polymer layer mentioned there on a protective layer d) made of polyethylene terephthalate film and having a thickness of 50 ⁇ m, treated with 1 to 2 g / m 2 of a chromium stearate complex ( R Quilon C from du Pont, Wilmington, Del. USA) is applied and dried (thickness of the polymer layer also 200 microns).
  • the laminate produced with this product has the advantage in comparison to laminates which have been produced with a siliconized film that the protective layer can be removed even more easily subsequently or at the same time as being glued onto the nail.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Cosmetics (AREA)
  • Materials For Medical Uses (AREA)
  • Adhesive Tapes (AREA)
  • Laminated Bodies (AREA)
EP92924633A 1991-12-12 1992-12-01 Selbstklebendes laminat für fuss- und fingernägel Expired - Lifetime EP0616517B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4140888A DE4140888A1 (de) 1990-07-30 1991-12-12 Selbstklebendes laminat fuer fuss- und fingernaegel
DE4140888 1991-12-12
PCT/EP1992/002771 WO1993011734A1 (de) 1991-12-12 1992-12-01 Selbstklebendes laminat für fuss- und fingernägel

Publications (2)

Publication Number Publication Date
EP0616517A1 EP0616517A1 (de) 1994-09-28
EP0616517B1 true EP0616517B1 (de) 1997-04-09

Family

ID=6446825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92924633A Expired - Lifetime EP0616517B1 (de) 1991-12-12 1992-12-01 Selbstklebendes laminat für fuss- und fingernägel

Country Status (8)

Country Link
EP (1) EP0616517B1 (es)
JP (1) JP3227576B2 (es)
AT (1) ATE151272T1 (es)
CA (1) CA2125684A1 (es)
DK (1) DK0616517T3 (es)
ES (1) ES2103384T3 (es)
GR (1) GR3023852T3 (es)
WO (1) WO1993011734A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4810593A (en) * 1992-09-15 1994-04-12 Marc Waldemar Schmidt Coloured, self-adhesive fingernail foils
DE4337945A1 (de) * 1993-11-06 1995-05-11 Labtec Gmbh Pflaster zur Behandlung von Nagelmykosen
ES2137614T3 (es) * 1996-03-06 1999-12-16 Heyne & Penke Gmbh & Co Imagenes de transferencia.
US6159977A (en) * 1998-11-16 2000-12-12 Astan, Inc. Therapeutic anti-fungal nail preparation
FR2792192B1 (fr) * 1999-04-19 2001-06-29 Lcw Les Colorants Wackherr Dispositif de maquillage pour la peau et son procede d'obtention
CN102132992A (zh) * 2006-09-29 2011-07-27 贾尼斯·乔丹 向哺乳动物的和人造的指甲提供固体指甲涂层的装置和方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE337458C (de) * 1921-06-01 Willy Wemuth Sicherung des Griffes von Fensterverschluessen gegen unbefugtes Drehen
DE4024125A1 (de) * 1990-07-30 1992-02-06 Lohmann Therapie Syst Lts Selbstklebendes laminat fuer naegel

Also Published As

Publication number Publication date
EP0616517A1 (de) 1994-09-28
CA2125684A1 (en) 1993-06-24
ES2103384T3 (es) 1997-09-16
GR3023852T3 (en) 1997-09-30
JPH07503630A (ja) 1995-04-20
ATE151272T1 (de) 1997-04-15
WO1993011734A1 (de) 1993-06-24
DK0616517T3 (da) 1997-10-27
JP3227576B2 (ja) 2001-11-12

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